Step 1:
The first step to converting 1961316766.6439 to a fraction is to re-write 1961316766.6439 in the form p/q where p and q are both positive integers. To start with, 1961316766.6439 can be written as simply 1961316766.6439/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1961316766.6439, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1961316766.6439/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1961316766.6439/1 each by 10000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 1961316766.6439 as a fraction:
1961316766/1 / 1